Have you tried to
Restart the iPad: Press and hold down the Home button on the front of the iPad for few seconds until the red slider appears, slide this across to shut the iPad down. Restart the iPad by pressing the power button on the top until the Apple logo appears.
Reset the iPad: You can do this by pressing the Home button and the Sleep/wake button on the top the iPad's case and holding them down together for at least 10 seconds, until you see the Apple logo. The iPad should then reset itself. The boot up process takes a few minutes and then the iPad should be responsive again.
I've found that my iPad needed to switch off wifi and then restart again.
Sent from my new iPad using iPF